Well, I guess the problem with the spam infraction is, that some people aren't sure what kinds of things that would be classified as spam, and are, like you, suprised when they're infracted. But honestly making a post, just saying "Snivy is the Pokemon of the Week" in multiple languages doesn't really contribute at all, and doesn't have a point to it at all, since people can check it themselves. Now, in most cases we would just have let it slide, but the problem is that you make posts like these too often.